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Install

install.packages('ursa')

Monthly Downloads

251

Version

3.8.20

License

GPL (>= 2)

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Maintainer

Nikita Platonov

Last Published

June 12th, 2020

Functions in ursa (3.8.20)

focal_mean

Low-pass spatial filter for image.
as.table

Frequency of unique values
rep

Replicate bands of raster image.
local_group

Create single-band raster using statistics of multi-bands raster.
create_envi

Create ENVI or GDAL files on disk
open_envi

open_envi file
Replace

assign values to the portion of raster images
ursaValue

Values of raster images.
groupGeneric

Group Generic Functions for raster image
local_stat

Bundle of statistics, which is applied to each cell of multi-band image.
get_earthdata

Retrive data from Global Imagery Browse Services (GIBS) using API for Developers
ursaStack

List of raster images.
as.integer

Transform values to type integer
as.array

Export raster object to multidimensional array
panel_new

Start plotting on the new image panel
as.matrix

Convert raster image to a matrix
colortable

Color Tables of raster images.
chunk

Get indices for partial image reading/writing
panel_graticule

Add latitude/longitude or metric grid to the image panel.
glance

Command line utility for spatial view of raster or vector GIS file.
na.omit

Drop bands which don't have data.
pixelsize

The actual size of each grid cell with considerable distortion in area of map projection.
as.data.frame

Convert raster image to a data frame
polygonize

Raster to vector (polygon) conversion.
bandname

Band names for raster image.
codec

Reduce and restore dimenstions for sparse data matrix
spatial_write

Wrapper functions for writing spatial objects.
hist

Histogram of raster image
colorize

Create color table
head

Extract first and last bands of raster image
compose_open

Start displaying
display_stack

Plot multi-band heterogenous raster images in the PNG format.
temporal_interpolate

Fill gaps across bands using moving mean window
compose_legend

Plot colorbars or marginal texts.
discolor

Destroy color table for raster images.
panel_decor

Add auxiliary elements to the plotting panel.
band_stat

Computes statistics for each band of raster.
envi_files

ENVI File Manipulation
global operator

Extract certains statistics for whole image
panel_contour

Add colored contour to the image panel
display

Plot raster image(s) in the PNG format.
identify

Get value and coordinates from location
Extract

Extract portion of raster images
ursaProgressBar

Progress bar
focal_special

Custom spatial filtering for image
ignorevalue

Extract and assign ‘nodata’ value of raster images.
ursa_dummy

Generate raster image for examples.
allocate

Rasterization of point data into grid cells
reclass

Reclassify specific values of image
focal_extrem

Extremal spatial filter for image
ursa_cache

Cache management of ursa package
zonal_stat

Zonal statistics for raster maps
ursa_grid

Extract and assign spatial parameters of raster images.
c

Combine bands into raster brick.
ursa_info

Print metadata for raster image.
ursa_crop

Crop 'no data' margins.
compose_close

Finish plotting
ursaRaster

Definition of ursaRaster class.
close

Close connections for files with data
cubehelix

Generate "cubehelix" palette.
compose_design

Organize multi-panel layout with images and color bars.
ursa_new

Create raster image in memory
write_gdal

Write raster image to GDAL file(s)
panel_annotation

Add label or annotation to the image panel.
seq

Sequence Generation for raster image and coordinate grid
display_brick

Plot multi-band homogenous raster image in the PNG format.
summary

Summary of raster image.
display_rgb

Plot RGB (RGBA) color composition in the PNG format.
compose_panel

Plot raster images and decorations on the multipanel layout.
panel_coastline

Add coastline to the image panel.
compose_plot

Plot layout of images and color bars.
spatial_read

Wrapper functions for reading spatial objects.
spatial_engine

Wrapper functions for manipulation with non-raster spatial objects
read_gdal

Read GDAL supported raster files.
legend_mtext

Write marginal text
legend_align

Align caption position for legend
as.Raster

Coercion to package 'raster' objects
legend_colorbar

Plot colorbar
ursa_proj

Extract and assign projection of raster images.
write_envi

Write raster image to ENVI .hdr Labelled Raster file.
regrid

Change raster image resolution and extent
session

Get and set sessional parameters for grid, CRS, external software for open PNG files.
band_group

Extract certain statistics of each band.
commonGeneric

Some generic functions for ursaRaster class.
ursa-package

Overview
is.na

‘No data’ values for raster images.
dim

Dimension of multiband raster image
ursaConnection

Connection of raster objects.
ursaGrid

Spatial parameters of raster images.
blank

Does any band contain no information?
open_gdal

Open GDAL file
nband

Get number of bands of raster image.
read_envi

Read ENVI .hdr Labelled Raster file to memory
as.ursa

Create raster image from R objects or GDAL raster files.
panel_scalebar

Add scale bar to the image panel
panel_plot

Add graphical elements to the image panel
panel_raster

Add raster to the image panel
panel_shading

Shaded overlay by image mask
ursa

Get and set properties of raster image.
temporal_mean

Smooth value across bands using moving mean window
focal_median

Median spatial filter for image
plot

Simple display of raster images
as.raster

Export raster object to a colored representation.